You can make hang gliding, like most adventure sports, as safe or dangerous as you want. Ways you can make it safe are to receive instruction from a certified professional and use safe equipment — professional schools will create as controlled a learning environment as possible. Hang gliding is an outdoor sport and Mother Nature is unpredictable — weather is always a big consideration. The primary safety factors are personal judgment and attitude. You must be willing to learn gradually and use good judgment and have an appropriate attitude. If you don’t, then you can get injured or killed; if you do, then you can hang glide until you’re 90.